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Suresh_M
Associate
September 15, 2025
Question

How to use Nucleo-F103 ST LINK to program external target?

  • September 15, 2025
  • 18 replies
  • 1419 views

Dear Experts,

Greets,

I trying to program STM32F103RCT6 micro controller using NUCLEO-F103RB evaluation board , but I am unable to debug and flash the code , i tried all the possible ways but , it didn't worked .Can somebody help me to solve this .

 

Best regards,

Suresh 

This topic has been closed for replies.

18 replies

AScha.3
AScha.3
Super User
September 15, 2025

Hi,

- show the circuit (your connections)

- show pic of your construction

to reduce the guessing about it.

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    Suresh_MAuthor
    Associate
    September 15, 2025

    Hello AScha,

    Here I've added Screenshot of PCB schematic and Nucleo-Board schematic also and along with that I added physical connection snap . 

     

    Andrew Neil
    Andrew Neil
    Super User
    September 15, 2025
    @Andrew Neil wrote:

    Someone was asking that recently for an ST-Link v3

    No, it was ST-Link V2 - and it's here:

    STLink V2 SWD operation without connecting VDD_TARGET PIN

     

    In particular, see:

    https://community.st.com/t5/stm32cubeprogrammer-mcus/stlink-v2-swd-operation-without-connecting-vdd-target-pin/m-p/838601/highlight/true#M8994

    Although the fact that you have it working in Keil does cast doubt on that.

     

    I can't remember if it was ST-Link or J-Link or something else, but ISTR something had a command-line option to ignore the target voltage measurement...

    Is there such an option in your Keil setup?

    Maybe ask on the Keil forum ...

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